(过程)1/2+x=1x-5/7=1/2x+2/3=10/11x-5/12=3/8x+3/4=5/6x+2/3-1/2=2计算3/4+5/12-11/2423/28+(13/14+1/70)9/16-1/8-3/81/15+2/7+14/15+5/71-3/7-4/71-(1/6-1/7)+1/65/8+7/9+3/825/15-2/5-3/52/3+7/10+1/3+3/105/9-5/12+4/98/9-(1/5-1/9
(过程)1/2+x=1x-5/7=1/2x+2/3=10/11x-5/12=3/8x+3/4=5/6x+2/3-1/2=2计算3/4+5/12-11/2423/28+(13/14+1/70)9/16-1/8-3/81/15+2/7+14/15+5/71-3/7-4/71-(1/6-1/7)+1/65/8+7/9+3/825/15-2/5-3/52/3+7/10+1/3+3/105/9-5/12+4/98/9-(1/5-1/9)5/12+11/15-5/15+7/125/9+1/65/8+1/31/4+2/5+3/811/20-2/55/6+1/21-2/7-1/26/7+1/6=()-5/12=()4/5+1/6=()-5/12=()3/4+1/6=()-5/12=()7/12-5/125/6-3/101/2+1/5+3/102/7+2/32/5+1/31-2/3-1/4